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$181+ Cheap flights from Ottawa (YOW) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to San Diego are usually found in May or November, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Ottawa to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$309
(United Airlines)

One-way from

$181
(Trip.com)

Popular in

October

Cheapest in

May

Average price

$480
From Ottawa to San Diego
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One-way flight from Ottawa to San Diego
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ottawa to San Diego

Cheapest flights from Ottawa to San Diego
Explore the most affordable flight options available from Ottawa to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:15 pmYOW - SAN
1 stop9h 18mUnited Airlines
Sat 11/1510:30 pmSAN - YOW
1 stop8h 56mUnited Airlines
Deal found 9/9$309
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:25 pmYOW - SAN
1 stop29h 21mMultiple Airlines
Fri 10/248:11 amSAN - YOW
2 stops13h 29mMultiple Airlines
Deal found 9/10$384
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:45 amYOW - SAN
1 stop12h 39mAir Canada
Tue 12/26:10 pmSAN - YOW
1 stop9h 33mAir Canada
Deal found 9/10$392
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/92:48 pmYOW - SAN
1 stop9h 36mUnited Airlines
Mon 10/1310:15 pmSAN - YOW
1 stop8h 43mUnited Airlines
Deal found 9/11$393
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:33 amYOW - SAN
1 stop18h 41mUnited Airlines
Fri 10/246:00 pmSAN - YOW
3 stops20h 06mUnited Airlines
Deal found 9/10$394
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:33 amYOW - SAN
1 stop14h 57mMultiple Airlines
Thu 10/238:10 amSAN - YOW
1 stop9h 04mMultiple Airlines
Deal found 9/10$398
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/223:10 pmYOW - SAN
2 stops11h 34mUnited Airlines
Tue 12/28:00 pmSAN - YOW
3 stops15h 27mUnited Airlines
Deal found 9/9$400
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:10 amYOW - SAN
2 stops23h 56mUnited Airlines
Sat 12/68:00 pmSAN - YOW
2 stops11h 26mUnited Airlines
Deal found 9/11$401
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:14 pmYOW - SAN
1 stop8h 06mUnited Airlines
Tue 12/210:52 amSAN - YOW
2 stops10h 02mUnited Airlines
Deal found 9/10$408
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/204:25 pmYOW - SAN
1 stop29h 21mMultiple Airlines
Sat 10/258:48 amSAN - YOW
1 stop29h 25mMultiple Airlines
Deal found 9/10$409

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Ottawa to San Diego that are best for you.

Fly from

Ottawa

Fly to

San Diego

Route

Depart

Return

Price

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 11/22

3:10 pm-11:44 pm

2 stops11h 34m

San Diego

Tue 12/2

8:00 pm-10:26 am

2 stops11h 26m

$309

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 11/1

9:45 am-5:28 pm

2 stops10h 43m

San Diego

Sat 11/15

6:45 am-9:18 pm

2 stops11h 33m

$309

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 10/17

4:25 pm-6:46 pm

1 stop29h 21m

San Diego

Fri 10/24

8:11 am-12:40 am

2 stops13h 29m

$384

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 10/17

4:25 pm-6:46 pm

1 stop29h 21m

San Diego

Thu 10/23

8:11 am-12:40 am

2 stops13h 29m

$384

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 3/4

10:35 am-11:44 pm

2 stops16h 09m

San Diego

Thu 3/5

7:00 am-9:14 pm

1 stop11h 14m

$385

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 11/25

7:45 am-5:24 pm

1 stop12h 39m

San Diego

Tue 12/2

6:10 pm-6:43 am

1 stop9h 33m

$392

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 10/9

2:48 pm-9:24 pm

1 stop9h 36m

San Diego

Mon 10/13

8:39 pm-11:45 am

2 stops12h 06m

$393

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 10/22

5:55 am-9:20 pm

3 stops18h 25m

$181

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 10/20

6:00 am-9:20 pm

3 stops42h 20m

$187

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 10/21

12:20 pm-1:26 pm

3 stops28h 06m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

Best time to book a flight from Ottawa to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to San Diego

How far ahead should I book a flight from Ottawa to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to San Diego. Price data was last updated on August 29, 2025.

The best time to book flights from Ottawa to San Diego is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ottawa to San Diego?

Currently, August is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $286). Flying from Ottawa to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to SAN?

Find hourly flight availability from Ottawa to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Ottawa to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 71% versus a flight in the morning.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ottawa to San Diego?

    A quick flight from Ottawa to San Diego can take about 11h 34m. United Airlines provides one of the quickest options available for as low as $309. The distance between Ottawa and San Diego is about 2360 mi.

  • What are the cheapest airlines flying from Ottawa to San Diego round-trip?

    Air Canada, at $186, was found to be the cheapest airline from Ottawa to San Diego. An alternate airline flying to your destination would be United Airlines. Air Canada is currently priced 56% below the average price you’ll pay for this route.

  • Can I find deals for flights from Ottawa to San Diego that include hotel bookings?

    Yes. In addition to deals on Ottawa to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to San Diego.

  • Can I find deals for business class flights from Ottawa to San Diego?

    Yes. Cheapflights offers flight deals from Ottawa to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $286). Flying from Ottawa to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Top 2 airlines flying from Ottawa to San Diego

Discover the top 2 airlines that operate flights from Ottawa to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$186Average$478FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$262Average$354FlexibilityNo cancel feeOn-time69%

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